Thread (6 messages) 6 messages, 3 authors, 2000-07-25

Re: diff to tonight's kaffe cvs tree to work on ppc

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From: <hidden>
Date: 2000-07-25 14:31:42

"Kevin B. Hendricks" wrote:
Hi Tom,

Good to hear from you again!
Hi Kevin!

  Good to see you too!
quoted
  This is only true as far as the 64 bit systems running on the 32 bit kernel,
which is all there is at the moment.
I am confused.  Which of the following is true on a 64 bit system running on a
32 bit kernel?

A).  sizeof(unsigned int) > sizeof(void *)

or

B). sizeof(unsigned int) < sizeof(void *)
B is true. On the 64 bit kernel int is 32, long is 64, void * is 64.
If A) is true, then my stack alignment macro will still work.  If B) is true, I
am in trouble.
I wouldn't say you are in trouble. We're going to try to put in 32 bit binary
compatibility so current 32 bit apps should run on the 64 bit kernel without a
recompile. I think there's only potential trouble for someone who would
recompile Kaffe for the 64 bit kernel... but that doesn't exactly quite exist
yet...
quoted
  Work has started on the 64 bit PowerPC Linux kernel, if Kaffe is compiled as a
64 bit app for that kernel then sizeof(unsigned long) = sizeof(void *) will be
true. Certainly not a big deal at this stage, but thought you'd be interested
none the less.
Sounds good!  When IBM is ready to start giving 64bit systems to help
developers, let me know! ;-)
Actually this sort of thing is starting to happen. While I can't promise
machines, it is possible to get a few out there here and there....

Regards,

Tom

--
Tom Gall - PowerPC Linux Team    "Where's the ka-boom? There was
Linux Technology Center           supposed to be an earth
(w) tom_gall@vnet.ibm.com         shattering ka-boom!"
(w) 507-253-4558                 -- Marvin Martian
(h) tgall@uswest.net
http://oss.software.ibm.com/developerworks/opensource/linux

** Sent via the linuxppc-dev mail list. See http://lists.linuxppc.org/
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